MantisBT MCP Server

io.github.dpesch/mantisbt-mcp-serverv1.11.0Search

MantisBT MCP server – manage issues, notes, files, tags, and relationships. With semantic search.

In-path gate · all MCP tools

Using MantisBT MCP Server in Claude, Cursor, Gemini CLI, Cline, or Zed?

MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).

Install the mcpindex gate (one command)

Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less

uv tool install mcpindex-gate && mcpindex-config-wire

Auditable install path →Watch it hold a drift →

Trust verdict · v1 advisory · method

REVIEWstatus: PARTIALfresh until 2026-08-01 18:02 UTC

screened 2026-07-02tier: scannedgranularity: description-levelsource: registry

Semantic screen found no manipulation pattern in the description. Conformance probe not yet run.

mcpindex.integrity.descriptionpassINFO

evidence“Declared capabilities, no hidden instructions”via static_description

Limits of this verdict

- Semantic screen only - the deterministic conformance probe has not run on this server
- Confidence is reported but not yet calibrated (v1)
- Screen reads the tool description, not the live behavior
- advisory
- registry description only no input schema
- screen model 8b

Semantic screen: an LLM judge reads the tool description for hidden instructions (status PARTIAL). A pass means the description is not lying, not that the tool is safe: a high-capability tool with an honest description still warrants caution. The deterministic conformance probe has not been run on this server yet, so the screen here is semantic-only. Posture: advisory. Confidences are reported but not yet calibrated (calibrated=false at v1). Full verdict history is not shown on this page.

Own this server? Screen its description →

That verdict was true at screening time (snapshot 2026-07-31).

Contracts can change after screening, with no version bump. The gate pins MantisBT MCP Server’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.

See your first HOLD in 2 minutes →

Embed this badge

A live verdict badge for your README or listing. It reflects the current screen, links back here, and updates when the verdict does.

Markdown

[![mcpindex](https://mcpindex.ai/api/v1/badge/io-github-dpesch-mantisbt-mcp-server)](https://mcpindex.ai/server/io-github-dpesch-mantisbt-mcp-server)

HTML

<a href="https://mcpindex.ai/server/io-github-dpesch-mantisbt-mcp-server"><img src="https://mcpindex.ai/api/v1/badge/io-github-dpesch-mantisbt-mcp-server" alt="mcpindex verdict" height="20" /></a>

Environment variables

MANTIS_BASE_URL

required

Base URL of the MantisBT REST API, e.g. https://your-mantis.example.com/api/rest

MANTIS_API_KEY

requiredsecret

MantisBT API key (Profile → API Tokens in MantisBT)

MANTIS_CACHE_DIR

Directory for the metadata cache. Defaults to ~/.cache/mantisbt-mcp

MANTIS_CACHE_TTL

Metadata cache TTL in seconds. Default: 3600 (1 hour)

TRANSPORT

Transport mode. 'stdio' for local use (default), 'http' for remote/team deployments

PORT

HTTP port when TRANSPORT=http. Default: 3000

MCP_HTTP_HOST

Bind address when TRANSPORT=http. Default: 127.0.0.1 (local only). Use 0.0.0.0 for Docker/remote.

MCP_HTTP_TOKEN

secret

Optional Bearer token to protect the /mcp endpoint when TRANSPORT=http

MANTIS_SEARCH_ENABLED

Enable offline semantic search (requires ~80 MB model download on first use)

MANTIS_SEARCH_BACKEND

Vector store backend for semantic search. 'vectra' (default, pure JS) or 'sqlite-vec' (faster for >10k issues)

MANTIS_SEARCH_DIR

Directory for the semantic search index. Defaults to ~/.cache/mantisbt-mcp/search

MANTIS_SEARCH_MODEL

Hugging Face model for embeddings. Default: Xenova/paraphrase-multilingual-MiniLM-L12-v2

MANTIS_SEARCH_THREADS

ONNX inference threads for the embedding model. Default: 1

MANTIS_UPLOAD_DIR

If set, restricts file uploads to this directory (path traversal protection)

MCP quality score · maturity, not trust · methodology

freshness

completeness

installability

documentation

stability

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Install this server

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "mantisbt-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "@dpesch/mantisbt-mcp-server"
      ],
      "env": {
        "MANTIS_BASE_URL": "<mantis_base_url>",
        "MANTIS_API_KEY": "<your-mantis_api_key>",
        "MANTIS_CACHE_DIR": "<mantis_cache_dir>",
        "MANTIS_CACHE_TTL": "3600",
        "TRANSPORT": "stdio",
        "PORT": "3000",
        "MCP_HTTP_HOST": "127.0.0.1",
        "MCP_HTTP_TOKEN": "<your-mcp_http_token>",
        "MANTIS_SEARCH_ENABLED": "false",
        "MANTIS_SEARCH_BACKEND": "vectra",
        "MANTIS_SEARCH_DIR": "<mantis_search_dir>",
        "MANTIS_SEARCH_MODEL": "Xenova/paraphrase-multilingual-MiniLM-L12-v2",
        "MANTIS_SEARCH_THREADS": "1",
        "MANTIS_UPLOAD_DIR": "<mantis_upload_dir>"
      }
    }
  }
}

Cursor (.cursor/mcp.json)

{
  "mcpServers": {
    "mantisbt-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "@dpesch/mantisbt-mcp-server"
      ],
      "env": {
        "MANTIS_BASE_URL": "<mantis_base_url>",
        "MANTIS_API_KEY": "<your-mantis_api_key>",
        "MANTIS_CACHE_DIR": "<mantis_cache_dir>",
        "MANTIS_CACHE_TTL": "3600",
        "TRANSPORT": "stdio",
        "PORT": "3000",
        "MCP_HTTP_HOST": "127.0.0.1",
        "MCP_HTTP_TOKEN": "<your-mcp_http_token>",
        "MANTIS_SEARCH_ENABLED": "false",
        "MANTIS_SEARCH_BACKEND": "vectra",
        "MANTIS_SEARCH_DIR": "<mantis_search_dir>",
        "MANTIS_SEARCH_MODEL": "Xenova/paraphrase-multilingual-MiniLM-L12-v2",
        "MANTIS_SEARCH_THREADS": "1",
        "MANTIS_UPLOAD_DIR": "<mantis_upload_dir>"
      }
    }
  }
}

Cline (cline_mcp_settings.json)

npx -y -- @dpesch/mantisbt-mcp-server

Claude Code (claude mcp add)

claude mcp add --scope user mantisbt-mcp-server -- npx -y -- @dpesch/mantisbt-mcp-server

Gemini CLI (gemini mcp add)

gemini mcp add -s user mantisbt-mcp-server npx -y -- @dpesch/mantisbt-mcp-server

Verdict API

curl -s mcpindex.ai/api/v1/trust/server/io-github-dpesch-mantisbt-mcp-server

Free-tier verdict as JSON: decision + dimensions + severity. Call it from your agent before it invokes a tool it just discovered.

Details

version: v1.11.0
category: Search
verdict expires: 2026-08-01
quality: 80 / 100
operator: io.github.dpesch

Listing

Listed from the official MCP registry. Unclaimed by its maintainer. Maintainer? Email us →

Provenance

Each verdict is bound to a hash of the exact description it judged, so a re-crawl that changes the text produces a new record rather than silently inheriting this one. Verdict history is hash-chained and anchored to Bitcoin via OpenTimestamps (latest confirmed at block 960,209). Verify it yourself.